Garment-cutting apparatus.



scribed for simultaneously GEORGE MQLAUIB, OF NEWARK, NEW JERSEY.

GARMENT-CUTTING APPARATUS.

Specification of Letters Patent.

Patented July 1141, rate.

Application filed December 1, 1911. Serial No. 663,339.

To all whom it may concern:

Be it known that I, Gnonon M. LAUB, a citizen of the United States, anda resident of the city of Newark, county of Essex, and State of NewJersey, have invented certain new and useful Improvements in Garment-Cutting Apparatus, of which the following is a specification, referencebeing had to the accompanying drawings. This invention particularlyrelates to that class of cutting devices which may be manually caused totraverse a pattern, and which is provided with a relatively movablecutting tool, mechanically actuated to cut or perforate a plurality oflayers of sheet material.

The principal objects of this invention are to provide a device of theclass decutting a plural ity of thicknesses of sheet material such ascloth, paper, leather, etc., which, if desired, may be securely fastenedto the surfacecf an operating table; to provide a cutting device whichis capable of free movement over the surface ofthe material, and whichis adapted to cut in any direction either forward or backward; toprovide a cutting device which may be operated so as to begin cutting atany point on the surface of the material without the necessity ofbeginning the cut at some point at the edge of the cloth; and to providea cutting device with guiding means, which, in connection with a patternor templet placed upon'the surface of the material to be cut,will'assure an accurate adherence to the design which is desired toproduce, thus relieving the operator from the nervous and bodily straininherently incident to guiding a cutting'device along marked lines forlongperiods of time.

Further objects of this invention are to provide means whereby a garmentcutting device may besuspended over the work table, and whereby theweight of the apparatus is entirely supported; thus freeing the operatorfrom the necessity of exerting much physical effort'in order to move thedevice over the layers of material to be out; and to provide a garmentcutter in which the knife is designed to out either forward or backwardwith respect to said knife; and toprovide means for variably adjustingthe pressure exerted downwardly on the materiahby the cutting apparatus,since it is 'tor desires to produce.

desirable toalter such pressure when operating on various sortsofmaterial.-

This invention also comprehends all of the various novel features ofconstruction and arrangement hereinafter more definitely specified.

In the accompanying drawings, Figure l is an elevation of the completegarment cutting apparatus; Fig. 2 is a vertical transverse fragmentarysection taken on the line 2-2 of Fig. 1; Fig. 3 is an enlarged elevationof the cutting device, shown partly in vertical section for convenientlyshowing its actuating mechanism; Fig. 4 is an enlarged fragmentary viewof the knife actuating plunger shown in vertical section; Fig. 5 is ahorizontal section taken on line 55 in Fig. 3; Fig. 6 is a horizontalsection taken on line 66 in Fig. 3; Fig. 7 is a horizontal section takenon line 77 in Fig. 4'; Figs. 8 and 9 are elevations of alternate formsof knives which may be employed in connection with the cutting deviceshown in Figs. 1 and 3; and Fig. 10 is a horizontal section of saidknives taken on lines 10-10 in Figs. 8 and 9.

Referring to the drawings, 1 represents a table or other suitablesupport for the material 2, which it is desired to cut, and which islaid smoothly thereon and preferably fastened firmly thereto by anydesired clamping means, said means not being shown in the drawings. Onthe upper surf-ace of the said material is preferably laid a pattern ortemplet 3 which can be constructed of any desired material, such as cardboard or thin fiber and the outline of which corresponds to the shape ofthe pattern which the opera:

also be firmly secured in position, ably by the same clamping meanswhich are utilized to hold the goods. v

Suspended from the ceiling 6 by the bracket 7, are the track rails 8.The brackets 7 are secured to'the ceiling bythe lag screws 9, and arepreferably formed in a channel or U-section, the open sides of thechannels being turned inwardly in such a. manner as to be mutuallyopposed as best shown in Fig. 2. The track rails 8 are preferablyformed-With one edge beveled, and are secured to the brackets 7 by thebolts 10 in such a manner that the beveled portions of the track railproject over the opti sides of the channels in the brackets 7 Thistemplet may;

prefer- Mounted upon the horizontal plate 12 are the roller supports 13and 14 which are se cured to the said plate 12 the bolts 15, and whichfurnish support for the spindles 18 on which are revolubly mounted theinwardly beveled rollers 19. The spindles 18 are secured to the supports13 and 14 in any desired manner. In the construction shown, the spindlespass through horizontal holes properlysituated in the supports 13 andl4,and are held in position by the nuts 21 which" engage with the threadedinner ends of the said spindle, as best shown in Fig. 2. It will beunderstood that the eight rollers 19 are symmetrically placed withrespect to the plate 12, and that the description of the mounting forone of the said rollers covers the similar mountings for the otherseven.

Secured to the underside of the plate 12 by the bolts 28, is tllevertical supporting rod 29,which extends downwardly from the said plate.At its upper end, this rod is provided with a flange 30 through whichthe bolts 28 pass and which serves to afford a means for firmly securingthe supporting rod to the plate 12.

g A collar'32 surrounds the supporting rod 29 and is secured thereto bythe set screw 33. Downwardly extending braces 34 extend from the cornersof the plate -12 to this collar. These braces are formed in pairs inasort of V-shape and have feet on the upper ends, affording means tosecure the upper ends of said braces to the supporting plate 12 by thebolts 35 which pass through suitable holes in the plate and the feet.That portion of the V where the two arms intersect is formed into a lug36 which rests against the collar '32 and is firmly secured theretobythe screw 37 which passes through a suitable hole in the lug and engagesin a threaded hole in the collar 32, a similar construction being usedfor the diametrically opposed brace on the other side of the collar. Atthe lower end of the supporting rod 29 is provided-the horizontal collar40, which drical aperture aforesaid 1s firmly secured to the said rod bymeans of the set screw 41. The upper surface of this collar is slightlyhollowed or grooved forming a race-way for the ball bearing 43 Y onwhich rests a suitable portion of the bracket 44. This bracket is formedpreferably in the manner shown in Fig. l, which may be described asbeing in the form of a semi-inverted L, that portion of the bracketcorresponding to the base of the B. being preferably circular inhorizontal section and having a central cylindrical aperture. the supthe bracket '44 thus being free to revolve horizontally around the saidrod. That portion of the bracket adjacent the lower end of the cylinishollowed out slightly to provide the upper race-way of the ball bearing43. The bracket 44 is also preferably provided with the yoke 47dependent therefrom and to which is secured an electric motor 48 bysuitable bolts 49, which pass through holes in suit-able portions of theyoke 47 and through corresponding holes in the base of the motor 48 andare fitted with nuts 50. The yoke 4:7 is designed to support the motor48 in such manner as to bring its greatest weight directly on the axialline of the rod 29, so that'the weight is evenly distributed on the ballbearing 43.

The outer end of the bracket 44, considering the rod 29 as a center, isprovided with a boss 53, the-lower face of which is circular in form.Through a. suitable hole in the boss 53 passes the vertical pivot bolt54, which is provided with a head 55 to keep it from falling through-thehole. On the lower portion of this bolt, which extends below the face ofthe boss 53, is revolubly fitted another boss 58, which is practicallysimilar in form to the boss '53, but which is fitted upon the bolt 54 inan inverted position and is secured thereon by the collar 59, which fitsupon the lower end of the bolt 54 and which is held in position by theset screw 60. Between the two opposed faces of the bosses 53 and 58, isprovided a ball bearing 61, the faces of the bosses being suitablyhollowed out or grooved to provide race-ways for the balls.

The horizontal arm 62 extends outwardly from the boss 58, being integraltherewith, and has firmly affixed to its outer end the boss Through asuitable hole in this boss passes the vertical pivot bolt 64, which isprovided with a head 65. Another boss (56, practically similar in allrespects to the boss (53, is held in opposed inverted relation to thelatter by means of the bolt 64 which passes upwardly through a suitablehole in the said boss 66 and through asuitable hole in the boss 63. Acollar (37 is secured upon the upper end of this bolt -by set screw (58.Betwe-en the two opposed faces of the bosses is provided the ballbearing (39, said faces being suit-ably hollowed out or grooved toprovide race-ways for the balls.

It .will be understood that the construction just described is inallrespects practically similar to the construction of the bosses andball bearings on the end of the bracket 44, except that the bolt 64passes through its respective bosses in the opposite direction to thatin which the bolt 54 passes through its respective bosses. In practice,it is preferred to make the bolt 54 a tight fit in the boss 53 and aworking fit in the boss 58, and the bolt 64 a tight fit in the boss 66and a working fit. in the boss 63.

Extending outwardly'and downwardly in a curved direction, as shown inFig. 1, from the boss 66, is the arm 70, the outer end of toned by meansof which tcrmimites in a boss 71 preferably of cylindrical form. A.vertical plunger 72 slidably passes through a suitable aperture in thesaid boss 71. At the upper end of the plunger 72 is pivoted the link 73by means of the horizontal pivot 7-1 and to the upper end of this linkis similarly pivoted the beam 75 by the horizontal pivot T0. Near itscenter, the beam 75 is provided with a longitudinal aperture throughwhich passes the arm 70.

The beam 75 is pivoted to the arm by means of the pivot 78 which passesthrough suitable apertures both in the beam and in the bracket 70, andwhich is provided on one end with an integral head and on the other withsuitable threads on which is secured a nut. lVashers T9 are preferablyplaced between the aforementioned head and nut and that portion of thebeam adjacent thereto. The end of. the beam opposite to the link 73 isprovided with an adjustable weight 80 which may be secured in anydesired adjusted position by the set screw 81.

he lower end of the plunger 72 is provided witha flange to theunder-side of which is firmly secured the casing 86 by the bolts 87.This casing, which is preferably rectangular in horizontal section, isconstructed in such manner that one side 88 may be readily removablo topermit free access to the mechanism inclosed therein, said removableside being preferably secured by the bolts 89. I

Within the case 86 is a crank shaft 90 which has its ends reduced insection and suitably journaled in bearings 91 and 92 provided in thewalls of the casing, the hearing 91 being preferably located in thatside if the casing which is removable. of the crank shaft journaled inthe bearing 92 extends through the casing and may be connected by a.suitable coupling 93 to the flexible shaft 91, of any well knownconstruction, tending upwardly and connected to the motor 48. Thisflexible shaft may be supported, if desired, by a book 95 attached to awire 96 which is secured to a lug 07 upon the bracket 1-1.

The crank shaft 90 is provided with a connecting rod 100 which embracesthe eccentric portion of the crank shaft, and is secured thereto in awell known manner by means f the cap 101 and the bolts 102. Theconnecting rod 100 is einln'aced at its outer end by. a bifurcatedportion of another connecting rod 105 to which it is pivotally fasthepivot 106 which passes through suitable holes in the bifurcated end ofthe connecting rod 105 and a similar hole at the end of the connectingrod 100, and which is secured in position by the nut- 107. 1

The lower nd of the connecting rod 105 is provided with an integral ballwhich, in

The end.

connection with a ca 108 and the base 109 forms a ball and socket jointin the Well known manner. The cap 108 is secured to the base 109 bymeans of the bolts 110.. The lower portion of the ball and socket jointnamely, the base 109 is integral with the cylindrical lunger 112 whichextends downardly therefrom. Surrounding said plunger 112, is the sleeve113 in which the said plunger forms a snug working fit. The upperportion of the said sleeve is provided with an integral flange 11s, theupper face of which rests against the lower side of the bottom of thecasing 86,

.1 collar 116 having a c ntr l cylindric l hole of a size to permit thesleeve 118 to pass therethrough and form a snug working {it therein, issecured to the underside of the casing 86 by the bolts 117. The upperpart of the hole in this collar is enlarged in di ameter in such manneras to snugly receive the. flange on the upper portion of the sleeve 1.1;so that when the collar 116 is secured in position. on the casing, thesleeve 113 extends downwardly therefrom and is held firmly in positionagainst the lower side of the casing 86, without however preventing itfrom being capable f rotation around its axis.

Diametrically opposed to each other on the outside of the sleeve 113 areprovided the two vertical feathers 120, 121 which extend longitudinallyalong the sleeve for a considerableportion of its length. Near the lowerendof the sleeve 113 is provided a 100 small set screw 12% which isscrewed into a suitable threaded hole in the sleeve 113 and 1UjCtS fromthe inner surface of said sleeve into a suitable longitudinal slot 125rovided in the lower portion of the plun- 105 err 112 as best shown inFigs. 4' and 7. The object of this set screw is to prevent relativerotation between the plunger 112 and the sleeve 113, while permittingfree movement of the plunger within the sleeve along j-cto its axialline. p

The lower end of the plunger 112 is provided with an upwardly extendingrectangular slot which is formed of proper dimensions to snugly containthe upper portion of a knife 130-. Surrounding the lower end of theplunger 112 is a collar 131, and in a suitable threaded horizontal holeprovided in. this collar and also through a correspond.- ing hole in thelower end of the plunger 112, the thumb screw 132 is arranged to pass,so that When the knife 130 is inserted in the rectangular slot providedtherefor in the, lower end of the plunger 112, and the thumb scrcw132 isscrewed inwardly to a sutlicient distance. the knife will be held firmlyin fixed relation to the plunger.

31 knife guide 110 is provided which is of peculiar conformation, asbest shown in Figs. land 3.

The upper portion of this guide extends for a short distance in ahorizontal direction and is provided with a vertical cylindricalaperture which forms a good working fit upon the outside of the sleeve113. Diametrically opposed key-ways 1%1, L12 ar provided, extendingoutwardly from the inner surface of the cylindrical aperture aforesaid,to permit the passage of the keys or feathers 120 and 121, as best shownin Fig. 6.

On the outside of the portion of the guide 110, which embraces thesleeve 113 is provided a lug 14.3, which has a vertical saw cutextending th'erethrough, and at right angles to this saw out extends thehorizontal bolt 1-14 which is secured in the lug for a short distancenear its head,,and which eX- tends freely through the remainder of thelug. Said bolt is provided at its other end with screw threads toaccommodate the wing-nut 145, so that by tighteningthe said;

wing-nut, the diameter of cylindrical hole in the knife guide 140. maybe constricted and the guide 1-10 thus clamped in any position desiredupon the sleeve 113, and by loosening the said wing-nut, the guide 140may be adjusted up and down upon the said sleeve. A Washer 146 is, inpractice, preferably inserted between the Wing-nut and that part of thesurface of the lug upon which it bears.

The knife guide 140 extends substantially downwardly from the portionthereof'just described, and at its lower end is provided with anupwardly extending recess forming a sort of fork in which is located thepresser roller 150. This roller is mounted upon the horizontal spindle151, which passes through the roller and upon which it is free torevolve. This spindle is preferably made in the form of a bolt havingthreads upon the end opposite its head 152 which engage in a suitablethreaded aperture in the knife guide as best shown in Figs. 3 and 5.

Adjacent that side of the roller 150 nearest the axial line of theplunger 112, the knife guide is provided with a downwardly extending lug155 so formed as to project slightly below the lowerface of the roller150, and to readily engage, when the machine is in operation, theprofile of the templet 3. A suitable slot 156 is provided in the knifeguide 140, which is extended forwardly on either side thereof, as bestshown in Fig. 5, in which the knife blade'l30 is free to verticallyreciprocate. This slot is preferably made of a sufficient width toreadily accommodate the knife 130, and to permit its reciprocationtherein but not wide enough to allow any lateral bending of the knifeblade. The knife guide 140, is also provided with the handle 162 on theright hand side of the knife when the machine is viewed in the positionshown in Fig. 1, and on the opposite side of the knife with the thumbpiece 163.

These projections are so formed as to afford a ready hold for theoperators hand.

the point is rounded, which is found, in

practice, to be more effective on certain sorts of material. Both formsof knives are sharpened on each of their side edges, or in other wordsare double edged, for a con-' siderable distance from the point, asillus trated in Fig. 10, where a horizontal sectional view is shown. Theupper portion of the knives are formed with rectangular sections adaptedto engage in the slot in the end of the plunger 112. It will beunderstood that other forms of knives may be employed, k

for" instance a rotary knife, or a knife for cutting separateperforations. To the supporting plate 12 is attached on either sidecords 170 and 171, which pass over suitable pulleys 172, and terminatein handles 17 3 in.

convenient position for the operator, thus permitting him to readilymove the plate 12 along the trace rails by pulling on the handle. Thepulley and handle for the cord 171 are not shown, but they may belocated in any convenient position in a manner similar to the pulley andhandle of the cord 170.

:The operation of the garment cutting apparatus is as follows: Thematerial being secured to the table as already explained,

and the templet 3 being clamped to the upper surface of the goods, theguide 136 is brought in contact with any portion of the profile of thetemplet. The wing-nut 145 is loosened and the knife guide adjustedvertically in such manner that the point of the knife 130, when in itslowermost position,

will reach the surface of the table 1 when the presser roller 150 isresting on the upper surface of the templet. The desired position of theknife guide being ascertained, the wing- Ilut 145 is tightened, thusclamping the knife guide in position and the power turned on to themotor 48. The knife 130 at-once thumb on the thumb piece 163, is abletomove the knife guide around the edge of the templet 3 in any directionwhich he chooses, the flexible arms of thesupporting means afiording'perfect freedom of movement in any direction and the double edge knivesbeing operative to out either forward or backward. The pressure of thepre'ss'er roller 150 upon the surface of the templet may be regulated bysliding the weight 80 along the beam 7 5, it being found desirable, inpractice, to vary the pressure according to the different materials uponwhich the machine has to operate. If, owing to the extent of the patternwhich it is necessary to cut, it is found desirable to move the plate 12along the track rails, which extend preferably longitudinally of thecutting table 1, such movement may be readily accomplished by a pull onthe handle 173.

It 1s not desired to limit the scope of this invention to the precisedetails of construction as set forth in this specification and theappended claims, since it is obvious that various changes andmodifications can be made therein without departing from the spirit orscope of the invention.

Having described my invention, I claim:

1. In a cutting apparatus of the class described, the combination with aknife, of a support having an arm whose free end is movable in asubstantially horizontal plane, knife actuating mechanism carried bysaid arm, connected in slidable relation therewith, and freely movablevertically with respect thereto, a hand-piece non,- rotatable withrespect-to said knife and carrying a presser, and means operative tovary the pressure of said presser in the direction of the goods to beoperated upon.

2. In a cutting apparatus of the class described, the combination withcutting means comprising a vertically reciprocatory double edge cuttingknife operative to out either forward or backward from any point on thesurface of the material to be operated upon, of a presser roller, meansoperative to vary the pressure of the roller on said material, guidingmeans carrying said presser roller and embracing said knife operative toengage a substantially rigid templet on the surface of the saidmaterial, supporting means comprising stationary track rails, flexiblemeans operative to connect said cutting means and said supporting means,and a slidable connect-ion between said supporting means and guidingmeans for permitting the latter to be uplifted from the material beingout.

3. In a cutting apparatus, the combination with means arranged to movein a predetermined plane, of an element arranged to move freely in apredetermined straight path with respect to said means, and means forholding and actuating a cutter, said last mentioned means being movablein unison with said element with respect to said firstmentioned means,and movable freely independently of said element and said firstmentionedmeans.

4. In a cutting apparatus, the combination with means arranged to movein a predetermined horizontal plane, of an element arranged toreciprocate vertically in a predetermined path with respect to saidmeans, and means for holding and actuating a cutter, said last mentionedmeans being movable in unison with said element with respect to saidfirst mentioned means, and be ing movable freely independently of saidelement and said first mentioned means.

- plunger for and for reciprocating said knife vertically 5. In acutting apparatus, the combina-- tion with a carriage arranged to movein a predetermined horizontal path, a motor sup ported by said carriage,an arm pivotally connected to said carriage and arranged to swing withrespect thereto about a vertical axis, a plunger arranged to reciprocatefreely vertically in a predetermined path with respect to said arm,means arranged to reciprocate vertically in unison with said holding andactuating a knife,

with respect to said plunger, and power transmission means connectingsaid motor and said means for actuating a knife.

6. In a: cutting apparatus, the combination with a carriage arranged tomove in a predetermined horizontal path, a motor supported by saidcarriage, an arm pivotally connected to said carriage and arranged toswing with respect thereto about a vertical axis, a plunger arranged toreciprocate freely vertically in a predetermined path with respect tosaid'arm, means arranged to reciprocate vertically in unison with, saidplunger for holding and actuating a knife and for reciprocating saidknife vertically with'respect to said plunger, power transmission meansconnecting said motor and said means for actuating a knife, and acounterbalance tending to lift said plunger upwardly.

7. A knife comprising a blade having two sharp oppositely disposed edgesextending longitudinally thereof and an end edge arranged obliquely withrespect to the longitudinal axis of said blade.

S. A cutting apparatus comprising an arm arranged to swing in apredetermined path about a vertical axis, of a vertical plunger,arranged to reciprocate freely vertically and in a predetermined pathwith respect to said arm, means carried by said plunger to hold a cutterand arranged to reciprocate freely vertically in unison withsaid'plunger and to move freely with respect to said plunger, and meansto move said first mentioned means with respect to said plunger toeffect the operation of cutting.

9. A cutting apparatus comprising an arm arranged to swing in apredetermined path about a vertical axis, of a vertical plunger, carriedby saidarm and arranged to reciprocate freely vertically and inapredetermined path with respect to said arm, means carried by saidplunger to hold a cutter and arranged to reciprocate freely verticallyin unison with said plunger and to move freely with respect to saidplunger, and means to move said first mentioned means with respect tosaid plunger to effect the operation of cutting.

10. A cutting apparatus comprising an arm arranged to swing in apredetermined path about a vertical axis, of a vertical plunger arrangedto reciprocate freely vertically and in a predetermined path withrespect to said arm, means carried by said plunger to hold a cutter andarranged to reciprocate freely vertically in unison with said plungerand to move freely with respect to said plunger, means to move saidfirst mentioned means with respect to said plunger to effect theoperation of cutting, and means arranged to reciprocate vertically inunison with said plunger for engaging the profile of a templet ofappreciable thickness and stiffness to guide .said first mentionedmeans.

11. A cutting apparatus comprising an arm arranged to swing in'apredetermined path about a vertical axis, of a vertical plunger arrangedto reciprocate freely vertically and in a predetermined path withrespect to said arm, means carried by said plunger to hold a cutter andarranged-toreciprocate freely vertically in unison with said plunger andto move freely with respect to said plunger, means to move said firstmentioned means with respect to said plunger to effect the operation ofcutting, and means arranged to reciprocate vertically in unison withsaid plunger and adjustable vertically with respect thereto for engagingthe profile of a templet-ofappreciable thickness and stiffness to guidesaid first mentioned means.

12. A cutting apparatus comprising an arm arranged to-swing in apredetermined path about a vertical axis, of a vertical plunger arrangedto reciprocate freely vertically and in a predetermined path withrespect to said arm, means carried by said plunger to hold a cutter andarrangedto reciprocate freely vertically in unison with said plunger andto move freely with respect to said plunger, means to move said firstmentioned means with respect to said plunger to, effect the operation ofcutting and means arranged to reciprocate vertically in unison with saidplunger and freely rotatable with respect to said plunger about avertical axis fixed with respect to said plunger, for engaging theprofile of a templet of appreciable thickness and stiffness to guide thefirst mentioned means.

13. A cutting apparatus, comprising an arm having a free end arranged toswing in a predetermined path about a vertical axis, a plunger arrangedto reciprocate freely vertically in a predetermined path with respect"to said free end, means carried by said plunger forholding a cutter andarranged to reciprocate vertically in unison with said plunger and tomove with respect to said plunger and means for counterbalacing saidplunger and said means for holding and moving a knife.

14. A- cutting apparatus "comprising an arm having a free end arrangedto swing in a predetermined path about a vertical axis of a plungerarranged to reciprocate vertically freely in a predetermined path withrespect to said free end, means arranged to reciprocate vertically inunison with said plunger and movable with respect to said plunger forholding a cutter, a beam carried by said arm and movable with respectthereto, and connected to said plunger, and a weight adjustablelongitudinally\of said beam for counterbalancing said plunger.

15. A cutting apparatus comprising means movable freely in any directionin a predetermined horizontal plane, vertical plunber arranged to movelaterally in unison with said means in any direction and arranged toreciprocate vertically freely with respect to said means, means carriedby said plunger and movable with respect thereto for holding a cutter, acutter carried by said last mentioned means, and means torcounterbalance said plunger.

16. A cuttin apparatus comprising an arm having a free end arranged toswing freelyin a horizontal plane'about a vertical axis; a verticalplunger arranged to ,ter plunger arranged to rotate freely about itsvertical axis and to reciprocate freely vertically with respect to saidfirst mentioned plunger, a vertical sleeve surrounding said cutterplunger and rotatable therewith but held against rotation with respectthereto and held against vertical movement with respect to said firstmentioned plunger, a cutter carried by said cutter plunger means securedto said sleeve for rotating said out ter plunger and for guiding saidknife, and means arranged to rotate about an axis fixed with respect tosaid first mentionedplunger for reciprocating said cutter plungervertically.

17. A cutting apparatus comprising an arm'having .a free end arran ed toswing freely in a horizontal plane about a vertical axis; a verticalplungerarranged to move laterally in unison with said free end and toreciprocate freely vertically with respect to said. free end, saidplunger being held against rotation about its longitudinal axis withrespect to said arm, a vertical cutter plunger arranged to rotate freelyabout its vertical axis and to reciprocate freely vertically withrespect to said first mentioned plunger a vertical sleeve surroundingsaid cutter plunger and rotatable therewith but held against rotationwith respect thereto and held against vertical movement with respect tosaid first mentioned plunger, a cutter carried by said cutter plunger,means se-.

cured to said sleeve and adjustable longitudinally thereof for rotatingsaid cutter plunger and for guiding said knife, and means arranged torotate about an axis fixed 5 with respect to said first mentionedplunger for reciprocating-said cutter plunger verticzilly.

In Witness whereof, I have hereunto set my hand, this 8th day ofNovember A. D.

GEORGE M. LAUB.

Witnesses:

EDWARD N. KINGSTON, J AMES M. lVooLwo 'rH.

